2008 LEXUS RX400H heater

303
4-1. Maintenance and care
4
Maintenance and care
RX400h_U
NOTICE
■Cleaning detergents
Do not use organic substances such as benzene or gasoline, acidic or alkaline solu-
tions, dye, bleach or other detergent. Doing so may discolor the vehicle interior or
cause streaks or damage to painted surfaces.
■Preventing damage to leather surfaces
Observe the following precautions to avoid damage to and deterioration of leather
surfaces.
●Remove any dust or dirt on leather surfaces immediately.
●Do not expose the vehicle to direct sunlight for extended periods of time. Park
the vehicle in the shade, especially during summer.
●Do not place items made of vinyl, plastic, or that contain wax on the upholstery, as
they may stick to the leather surface if the vehicle interior heats up significantly.
■Water on the floor
Do not wash the vehicle floor with water.
Vehicle systems such as the audio system may be damaged if water comes into
contact with electrical components under the floor of the vehicle, and may also
cause the body to rust.
■Cleaning the inside of the rear window
Be careful not to scratch or damage the heater wires or antenna.

356
4-3. Do-it-yourself maintenance
RX400h_U■
Engine compartment (type B)
FuseAmpereCircuit
11HEATER50Air conditioning system, “WATER
PUMP” fuse
12IG130“SEAT HTR” fuse
13H-LP CLN30Headlight cleaner
14RR DEF40Rear window defogger
15RDI FAN No.140Electric cooling fan
16DC/DC120Hybrid system
17DRL7. 5Daytime running light system
18H-LP L LWR15Left-hand headlight (low beam)
19H-LP L UPR15Left-hand headlight
20H-LP R UPR15Right-hand headlight (high beam)
21PER OUTLET
NO.220Po w e r o u t l e t ( 1 1 5 VAC )
22TOW I N G30Trailer lights
23PBD30Power back door

358
4-3. Do-it-yourself maintenance
RX400h_U■
Engine compartment (type C)
41IGCT NO.510Hybrid system
FuseAmpereCircuit
42WAT E R P U M P10Air conditioning system
43SEAT HTR20Seat heaters
44IGCT NO.2 10Hybrid system
45IGCT NO.310Hybrid system, fuel pump
46IGCT NO.410Emission control system, transaxle
control system, air/fuel control system
FuseAmpereCircuit

360
4-3. Do-it-yourself maintenance
RX400h_U
57RR FOG 7. 5No circuit
58AIR SUS7. 5No circuit
59DOOR NO.225Multiplex communication system
60S/ROOF 30Moon roof
61TA I L10
Front fog lights, instrument cluster
lights, instrument panel lights, front
side marker lights, tail lights, license
plate lights, towing converter
62PA N E L7. 5
Glove box light, instrument cluster
lights, instrument panel lights, console
box light, audio system, power outlet,
garage door opener switch, transmis-
sion system, headlight cleaner, seat
heaters, steering switches, power
back door
63ECU-IG NO.17. 5
Power rear view mirror control, moon
roof, multiplex communication system,
shift lock control system, multiplex
communication system (power door
lock system, wireless remote control
system), driving position memory sys-
tem, vehicle dynamics integrated
management, windshield wipers,
transmission, seat heaters, power
seats, tilt and telescopic steering,
power back door
64ECU-IG NO.210
Automatic headlight leveling system,
vehicle dynamics integrated manage-
ment, dynamic laser cruise control,
headlight cleaner, adaptive front-light-
ing system
FuseAmpereCircuit

361
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX400h_U
65HEATER7. 5
Electric cooling fan, air conditioning
system, rear window defogger, engine
switch, windshield wiper de-icer
66WA S H E R20Windshield washer
67SEAT HTR20No circuit
68GAUGE NO.17. 5
Instrument cluster lights, instrument
panel lights, emergency flashers, seat
belt, power outlet, multiport fuel injec-
tion system/sequential multiport fuel
injection system, back-up lights
69FR WIP30Windshield wipers
70RR WIP15Rear window wiper
71INJ 20
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
72IGN10
SRS airbag system, multiport fuel
injection system/sequential multiport
fuel injection system, front passenger
occupant classification system, stop
lights, hybrid vehicle immobilizer sys-
tem
73GAUGE NO.27. 5Gauge and meters
74ECU-ACC7. 5
Navigation system display, power rear
view mirror control, shift lock control
system, multiplex communication sys-
tem
75CIG15Po w e r o u t l e t
76PWR OUTLET
NO.115Po w e r o u t l e t
FuseAmpereCircuit

451
6-1. Specifications
6
Vehicle specifications
RX400h_U
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

473
Alphabetical index
RX400h_U
CareExterior ................................................... 298
Interior.......................................................301
Seat belts ............................................... 302
Cargo capacity ....................................... 178
Cargo hooks .......................................... 284
CD changer CD .............................................................. 214
MP3 disc ............................................... 220
WMA disc ............................................ 220
CD player.................................................. 214
Chains......................................................... 184
Child restraint system Booster seats, definition.................. 108
Booster seats, installation ..................113
Convertible seats, definition ......... 108
Convertible seats, installation .........113
Front passenger occupant
classification system .......................103
Infant seats, definition ....................... 108
Infant seats, installation........................113
Installing CRS with lower
anchorages ...........................................116
Installing CRS with seat belts ..........113
Installing CRS with top straps ........ 118
Child safety
Air bag precautions ............................ 98
Battery precautions.............. 328, 423
Child restraint system ...................... 108
Child-protectors................................... 40
How your child should wear the seat belt ...........................................62
Installing child restraints ..................... 112
Moon roof precautions ...................... 77
Power window lock switch .............. 72
Power window precautions............. 74 Removed rear seat entertainment
system controller battery............. 351
Removed wireless remote control battery precautions .......................349
Seat belt comfort guide .....................59
Seat belt extender precautions...... 64
Seat belt precautions .......................... 62
Seat heater precautions................. 280
Child-protectors ...................................... 40
Cleaning Exterior................................................... 298
Interior ...................................................... 301
Seat belts ................................................302
Clock ......................................................... 274
Coin holder .............................................268
Compass .................................................. 292
Condenser .............................................. 325
Console box ........................................... 266
Cooling system Engine overheating........................... 424
Cruise control Cruise control........................................157
Dynamic laser cruise control ........ 160
Cup holder .............................................. 269
Curtain shield airbags............................. 91
Customizable features .......................458
Daytime running light system ........... 149
Defogger Rear window ........................................204
Side mirror.............................................204
Dimension................................................430
Dinghy towing ......................................... 196
Display
Dynamic laser cruise control ........ 160
Trip information ................................... 146C
D

475
Alphabetical index
RX400h_U
Preparing and checking before winter ...................................... 182
Engine oil maintenance data ............. 321
Engine switch............................................ 131
Engine switch light ............................... 260
EPS............................................................... 169
Event data recorder............................ 386
Floor mat.................................................. 283
Fluid Brake ....................................................... 325
Washer ................................................... 329
Fog lights Replacing light bulbs ....................... 365
Switch ..........................................................151
Wattage ................................................... 441
Foot well lighting .................................. 260
Front fog lights Replacing light bulbs ....................... 365
Switch ..........................................................151
Wattage ................................................... 441
Front passenger's seat belt
reminder light ....................................... 391
Front seats
Adjustment ...............................................49
Driving position memory ................. 55
Flattening seatbacks ........................... 50
Front side marker light
Replacing light bulbs ....................... 365
Wattage ................................................... 441
Front turn signal lights Replacing light bulbs ....................... 365
Wattage ................................................... 441 Fuel
Capacity .................................................433
Fuel gauge.............................................. 138
Gas station information ................. 484
Information ............................................ 442
Refueling.................................................... 78
Type .......................................................... 442
Fuel door ..................................................... 78
Fuel filler door ........................................... 78
Fuses ..........................................................352
Garage door opener .......................... 287
Gas station information......................484
Gauges ...................................................... 138
Glove box ................................................ 265
Glove box light ...................................... 266
Head restraints
Adjusting .................................................. 57
Headlight aim ......................................... 364
Headlight cleaner .................................. 156
Headlights
Discharge headlights precautions........................................375
Replacing light bulbs ....................... 365
Switch........................................................ 148
Wattage ....................................................441
Heaters
Seat heaters ......................................... 280
Side mirror.............................................204
Hood ........................................................... 313
Hooks Cargo hook ..........................................284
Shopping bag hook..........................284
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